| Hal Finkel | 9887ec3 | 2013-03-18 17:40:44 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -mcpu=a2 | FileCheck %s |
| 2 | target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64" |
| 3 | target triple = "powerpc64-unknown-linux-gnu" |
| 4 | |
| 5 | define void @main() #0 { |
| 6 | entry: |
| 7 | br i1 undef, label %for.end, label %for.body |
| 8 | |
| 9 | for.body: ; preds = %for.body, %entry |
| 10 | %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 1, %entry ] |
| 11 | %indvars.iv.next = add i64 %indvars.iv, 1 |
| 12 | %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| 13 | %exitcond = icmp eq i32 %lftr.wideiv, 0 |
| 14 | br i1 %exitcond, label %for.end, label %for.body |
| 15 | |
| 16 | ; FIXME: We currently can't form the 32-bit unsigned trip count necessary here! |
| 17 | ; CHECK: @main |
| 18 | ; CHECK-NOT: bdnz |
| 19 | |
| 20 | for.end: ; preds = %for.body, %entry |
| 21 | ret void |
| 22 | } |
| 23 | |
| 24 | define void @main1() #0 { |
| 25 | entry: |
| 26 | br i1 undef, label %for.end, label %for.body |
| 27 | |
| 28 | for.body: ; preds = %for.body, %entry |
| 29 | %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 1, %entry ] |
| 30 | %indvars.iv.next = add i64 %indvars.iv, 1 |
| 31 | %exitcond = icmp eq i64 %indvars.iv.next, 0 |
| 32 | br i1 %exitcond, label %for.end, label %for.body |
| 33 | |
| 34 | ; CHECK: @main1 |
| 35 | ; CHECK: li [[REG:[0-9]+]], -1 |
| 36 | ; CHECK: mtctr [[REG]] |
| 37 | ; CHECK: bdnz |
| 38 | |
| 39 | for.end: ; preds = %for.body, %entry |
| 40 | ret void |
| 41 | } |
| 42 | |
| 43 | define void @main2() #0 { |
| 44 | entry: |
| 45 | br i1 undef, label %for.end, label %for.body |
| 46 | |
| 47 | for.body: ; preds = %for.body, %entry |
| 48 | %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 1, %entry ] |
| 49 | %indvars.iv.next = add i64 %indvars.iv, 1 |
| 50 | %exitcond = icmp eq i64 %indvars.iv.next, -100000 |
| 51 | br i1 %exitcond, label %for.end, label %for.body |
| 52 | |
| 53 | ; CHECK: @main2 |
| 54 | ; CHECK: lis [[REG:[0-9]+]], -2 |
| 55 | ; CHECK: ori [[REG2:[0-9]+]], [[REG]], 31071 |
| 56 | ; CHECK: mtctr [[REG2]] |
| 57 | ; CHECK: bdnz |
| 58 | |
| 59 | for.end: ; preds = %for.body, %entry |
| 60 | ret void |
| 61 | } |
| 62 | |
| 63 | attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" } |